Jerry Haas has built Pro Stocks and Pro Stock Trucks for the biggest names in the class. He has won the Car Craft All-Star Chassis Builder award a record 13 times. Jerry is an experienced racing also, having won the 1981 and 1984 AHRA Pro Stock World Championships. He has competed in NHRA Pro Stock and Pro Stock Truck as a driver and car owner. Address questions to chassis@racingnetsource.com.

Should ladder bars be installed level with the ground or the frame rails in the car? The car is spinning off the line a little and then a lot when I use the nitrous. The car has 130-lb. springs on the back. Should I leave the 130's on or put 110's on it? The car weighs about 2900 with me in it. I have to loosen the shocks up for it to try to hook.

Thanks for the help.
Toben Kendrick

Toben,

Ladder bars should have 3 degrees down for more traction and to hit the tire quicker. Also, put the pinion down 6 degrees to the ground. This should help your traction problem. I would leave 130-lb springs on the car. A car weighing 2900 lbs. needs a 130-lb spring.

Jerry

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